Powersportsmax is also motopartsmax, as well as Ride Max Inc and Dealc Inc.
It made me worry when the same company, out of the same building, has so many names. But being as these are china bikes, parts that are kept in inventory stateside are hard to come by, so options are limited.
I ordered a gasket set from them..under the name Motopartsmax, it was the cheapest price around. The order showed as processing on the website for a few days, then when I checked it again a couple days later it showed as delivered. Went and checked the mail, it was there,
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Haven't had any customer service experience with them, but have read bad reviews of their customer service. But as far as knowing what you want and ordering it, I give them an A.
Also, reading some reviews, be weary about ordering parts that are normally attached to something else, IE the helper spring on the kickstand, I've read that they will send the entire assembly and charge for the other parts, even though they list them separately.